Detail publikace

Factors governing the dimensional accuracy and fracture modes under compression of regular and shifted orthogonal scaffolds

MONTUFAR JIMENEZ, E. SLÁMEČKA, K. CASAS LUNA, M. SKALKA, P. RAMIREZ-CEDILLO, E. ZBONČÁK, M. KAISER, J. ČELKO, L.

Originální název

Factors governing the dimensional accuracy and fracture modes under compression of regular and shifted orthogonal scaffolds

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Direct ink writing allows controlling the structure of tissue engineering scaffolds. The aim of this work was to study the effects of the in silico pattern design on the dimensional accuracy of tricalcium phosphate scaffolds and of the loading direction on the compressive strength and fracture modes. Regular and shifted scaffolds showed anisotropic shrinkage during drying and isotropic shrinkage during sintering. Shifted layers induced bending stresses when compressed longitudinally, resulting in lower compressive strength. The transverse Young's modulus and compressive strength were higher than the longitudinal ones for both regular and shifted structures. Strand deflections were more pronounced in shifted structures. Finite element modelling suggested that such deflections considerably increased the effective transverse modulus of the shifted scaffolds, thus increasing the related compressive strength. In conclusion, shifted scaffolds performed similarly to regular ones in the transverse direction but were less mechanically reliable under the longitudinal direction.

Klíčová slova

Direct ink writing; Scaffold design; Tricalcium phosphate; Compression; Fracture mode

Autoři

MONTUFAR JIMENEZ, E.; SLÁMEČKA, K.; CASAS LUNA, M.; SKALKA, P.; RAMIREZ-CEDILLO, E.; ZBONČÁK, M.; KAISER, J.; ČELKO, L.

Vydáno

2. 4. 2020

Nakladatel

Elsevier

Místo

OXFORD

ISSN

0955-2219

Periodikum

Journal of the European Ceramic Society

Ročník

40

Číslo

14

Stát

Spojené království Velké Británie a Severního Irska

Strany od

4923

Strany do

4931

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0955221920302260

Plný text v Digitální knihovně

http://hdl.handle.net/11012/201793

BibTex

@article{BUT165171,
  author="Edgar Benjamin {Montufar Jimenez} and Karel {Slámečka} and Mariano {Casas Luna} and Petr {Skalka} and Erick {Ramirez-Cedillo} and Marek {Zbončák} and Jozef {Kaiser} and Ladislav {Čelko}",
  title="Factors governing the dimensional accuracy and fracture modes under compression of regular and shifted orthogonal scaffolds",
  journal="Journal of the European Ceramic Society",
  year="2020",
  volume="40",
  number="14",
  pages="4923--4931",
  doi="10.1016/j.jeurceramsoc.2020.03.045",
  issn="0955-2219",
  url="https://www.sciencedirect.com/science/article/pii/S0955221920302260"
}